InnospecIOSP.OValuation Analysis
Based on the blended 10-year P/E and P/B percentiles, the stock currently sits in the “Fair Value Range” zone.
As of Oct 16, 2026, Innospec (IOSP.O) trades at a P/E of 19.60x, P/B of 1.78x, P/S of 1.29x, and a dividend yield of 0.96%.
Longitudinal percentile comparison: P/E sits at the 29th percentile over the trailing 10Y window (vs. 38th percentile over 3Y); P/B sits at the 16th percentile over the trailing 10Y window (vs. 48th percentile over 3Y); P/S sits at the 33rd percentile over the trailing 10Y window (vs. 53rd percentile over 3Y).
Cross-sectional valuation: its P/E ranks at the 39th percentile within its industry and the 51st percentile across the broader market.
Shareholder return highlight: Total Shareholder Yield is 1.96%, ranking at the 65th percentile over the trailing 20Y window.
The P/E and P/B long-window percentiles differ by only 13.8 points, pointing to a consistent valuation read across both metrics. Relative to industry peers, its P/E shows a deeper discount than it does against the broader market. Breaking down the total shareholder yield: 0.96% comes from cash dividends, with an implied ~1.00% from buybacks — a fairly balanced mix of both channels. Innospec operates in the Manufacturing sector. Data refreshes weekly and is for reference only, not investment advice.
Also listed as: NASDAQ: IOSP · IOSP
Want the full picture on whether Innospec (IOSP.O) is under- or over-valued? See the full 3Y / 5Y / 10Y / 20Y P/E, P/B, P/S, Dividend Yield & Total Shareholder Yield percentile matrix and the interactive ECharts trend chart on this page.
Historical Percentiles by Metric
| Metric | Current | Market Percentile | Industry Percentile | 3Y Pctl | 5Y Pctl | 10Y Pctl | 20Y Pctl |
|---|---|---|---|---|---|---|---|
| P/E (TTM) | 19.60 | ||||||
| P/B (MRQ) | 1.78 | ||||||
| P/S (TTM) | 1.29 | ||||||
| Dividend Yield | 0.96% | ||||||
| Buyback + Div Yield | 1.96% |